Mechanical movement.



F T.-JO HNSO N. MECHANICAL moyzmsm. APPLICATION FiLED APR. 27,1914-.Patented Oct. 10,1916.

-2 SHEETS-SHEET 1.

jfz erzr JF a ffoizrwwa 3 7 C/ 1 C F M: M 7 m I M 1 b. I V I/ll r JH/u////////// all/ Patented Oct. 10, 1916.

2 SHEFTS-SHEET 2.

Ina/e22???" F. T. JOHNSON.

MECHANICAL MOVEMENT,

APPLICATION FILED APR-27.1914.

J y mi VII/llIIIIIIIIIIIIIIIIIIIIIIIIIIll/I FRANCIS T. JOHNSON, OFCHICAGO, ILLINOIS.

MECHANICAL MOVEMENT.

Specificationof Letters Patent Application filed April 27, 1914. SerialNo. 834,575.

To all whom it may concern:

Be it known. that I, FRANCIS T. JOHNSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Mechanical Movements,of which the following is a specification.

'My invention relates to improvements in washing machines and isillustrated diagrammatically in one form in the accompanying drawings,wherein-- Figure 1 is an end elevation with parts in section and partscut away; Fig. 2 1s a section along line 2-2 of Fig. 1; and Fig. 3 is aplan detail of the clutch mechanism.

Like parts are referred to by like letters throughout the severalfigures.

A 1s a substantially cylindrical washing machine tub having at its upperend a recessed part A I A is the door of the tub held against the wallat the bottom of the recessed part A by the cross-piece A which may beturned to underlie the wall of the tub and be tightened on it by thehandscrew A.

A is the overflow from the tub and A the supply pipe.

. A is a solid cleat to guide the clothes in the tub attached to thesidewall of the tub at either end and corrugated at A and provided with acomparatively narrow clearance, in actual practice about one-sixteenthof an inch in width, as at A above the bottom wall of the tub. The tubis supported on one side by a spindle A in a bearing A on the end frameA and is a further spur gear C pinned on the other side to a shaft Bwhich shaft is rotatably mounted in the bearings B B on the frame B Thebearing B is carried in a boX member B which is supported from the frame13 and together with the frame forms a housing for the drivingmechanism, which mechanism I will now describe.

C is a drive. shaft carrying a drive pulley C driven by a belt C fromany suitable source of power. It is rotatably mounted in the bearings CC and carries a pinion C in mesh with the spur gear 0. This spur gear Cis rotatably mounted on the pin C carried by the frame B It is in meshwith similarly supported on the frame B Thus these two spur gears rotatein opposite directions.

'F is a pinion F D, D are pins projecting outwardly from the spur gearsC, C. Rotatably mounted on them are bearing sleeves D upon which aremounted, held in position by the set screws D the spring carryingsleeves D. These spring carrying sleeves have hollow lugs D downwardlydepending therefrom, and slidable in these lugs are piston rods orplungers D supported by the springs D Attached to the end of these rodsis a chain D and this chain passes over a sprocket drum D rotatablymounted on the shaft B.

E 1s a clutch ring keyed to the shaft B carrying a clutch arm Epivotally mounted thereon. a

E is a clutch slot in the drum D E E are curved clutch arm operatingfingers mounted on a carriage E slidable on the guides E.

E is a link to move the carriage along the guldes, and E is a lever armpinned to the control rod E whereby the carriage and link may be movedby means of the hand wheel E The rod E is free to. slide in the bearingsE, E and is provided with a pin E in opposition to a pin E on thebearing E so that, when in the position shown in Fig. 2 the clutch islocked in the out .position by lifting up the bandwheel E and thenrotating it .to bring the pin E upon the other side of the pin E theclutch may be thrown in.

F are brackets supported on the frame members A B provided for .holdinga wringer.

F is a sprocket chain leading up to the wringer not shown andadapted todrive it. F is a sprocket for driving this chain. This sprocket ismounted on a shaft F in a bracket or yoke F which yoke is pivotallymounted on the shaft F and provided with controlling handle wheels F. Onthe shaft in the same plane as the spur gears C C. It will be noted thatthe spur gear C m0ves in a clockwise direction and the spur gear 0 in acounterclockwise direction, so that when the hand wheels F aremanipulated to bring the pinion F in mesh with the spur gear C thetendency is to make that spur gear move toward the right, thuseffectually looking it in position. When it is in mesh with C thereverse is the case, so no locking means are needed to hold the spurgear and the'p inion in mesh..

f Patented Oct. 10, 1916.

down toward the tub, the end at D will be carried up away from the tub,and the tub will then be rotated in a clockwise direction.

As the rotation of the gears continues, however, the part D willcommence to recede from the tub and the part D will approach it, and thereciprocation of the tub will be reversed. The springs at the end of thechain give a flexible drive. The tub thus rotates or oscillates back andforth as long as the chain reciprocates. It will be obvious that anysuitable velocity ratio between the tub and chain may be provided, sothat if a slight movement of the tub is desired a large sprocket drumwill be used and if a large movement of the tub is desired a smallsprocket drum will be used. I have shown a device in which my tubrotates approximately through an arc of not more than 180, but it mightrotate through 360 or less, depending entirely upon the relative sizesof the interacting parts.

I have used the term flexible band and wheel as applied to the chain andsprocket,

as it is obvious that mechanical parts might be used other than thechain and sprocket shown. The same is true of the term crank pin. Thecrank pin does not need to be driven necessarily by gears but might bedriven in other ways. They do not need to opposite directions and meansmounted on said gears to support the ends of the chain to reciprocatethe chain and oscillate the sprocket.

2. A mechanical movement comprising a sprocket, a chain in mesh with andriding over said sprocket, a pair of gears, means for rotating them inopposite directions at the same velocity, the two ends of the chainbeing-fattached one to each of the gears at points separated by an angleof180 3. A driving mechanism for an osillatin body comprising a pair ofgears of equa diameter inmesh one with the other, means for rotatingthem, crank pins projecting from the surfaces thereof at equal distancesfrom the centers of rotation, said pins' being' separated by an angle of180, a loose belt I said pins being separated one attached at its endsto each of said pins and a driven member over which said belt travels.

4. A mechanical movement comprising a pair of crank pins separated by anangle of 180, means for rotating these crank pins in opposite directionsat a fixed angular Velocity, a flexible band attached at each end to oneof said pins and a wheel driven by the reciprocation of the flexibleband.

5. A mechanical movement comprising a pair of rotating crank pins, meansfor rotating them at a common angular velocity, said pins-beingseparated one from the other by an angle of 180 a flexible band havingits two ends attached one to each of said pins, an oscillatable wheelover which said band travels in driving relation thereto, and a yieldingconnection between said pins and said band.

6. A mechanical movement comprising a. pair of crank pins separated byan angle of 180, means for rotatmg these crank pins in oppositedirections at a fixed angular velocity, a flexible band attached at eachend to one of said pins, a wheel driven by the reciprocation of theflexible band andja yielding connection between said pins and said band.

7. A mechanical movement comprising a pair of rotating crank pins, meansfor rotating them at a common angular velocity,

mm the other by an angle of 180, an extensible flexible band having itstwo ends attached one to each of said pins, and an oscillatable wheelover which said band travels in driving relation thereto.

8. A mechanical movement comprising a pair of crank ins separated by anangle of 180, means f5 in opposite directions at a fixed angular verrotating these crank pins locity, an extensible flexible band attachedat each end to one of said pins and a wheel dr1ven-by the reciprocationof the flexible band. L

9. A driving mechanism comprising a r0- tatably mounted member, aflexible band in engagement with the periphery thereof, a pair of gearsand means for rotatin them in opposlte directions, the ends of saidflexible band being attached one to each of said gears. i

10. A driving mechanism comprising a rotatably mounted member, a.flexible band in engagement with the periphery thereof, a

pair of gears and means for rotatin them in oppos te directions, theends of said flexible band being attached one to each of said gears andan elastic connection between the ends of the band and the gears.

11. A driving mechanism comprising a rotatably mounted member, aflexible band in peripheral engagement therewith, a pair of cranks andmeans for rotating them the ends of said band being mounted-one to eachof said cranks and a yieldable connection between the cranks and theends of the band.

12. A driving mechanism comprising a rotatably mounted member, aflexible band in peripheral engagement therewith, a pair of cranks, andmeans for rotating them in opposite directions, the ends of said bandbeing mounted one on each of said cranks.

13. A driving mechanism comprising a rotatably mounted member, aflexlble band in peripheral vengagement therewith, a pair of cranks,means for rotating them in opposite directions, the ends of said bandbeing mounted one on each of said cranks, and a flexible connectionbetween the cranks and the ends of the band.

14. A driving mechanism comprising a roand then the other away from thecenter of rotation of the rotatably mounted member to give it areversing rotary movement, said means comprising a pan of cranks, meansfor rotating them, and gears upon which said cranks are mounted in meshone with the other.

In testimony whereof, I aflix my signature in the presence of twowitnesses this 15th day of April, 1914.

FRANCIS T. JOHNSON.

Witnesses:

Bnssm S. RICE, MINNIE M. LINDENAU.

